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Finding the Fourth Proportional to 19,051, 26,290.38 and 10,667.68

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Solution

The fourth proportional to 19,051, 26,290.38 and 10,667.68 is: 14,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,051 : 26,290.38 = 10,667.68 : x
  2. Step 2: Convert to fraction form
    19,051/26,290.38 = 10,667.68/x
  3. Step 3: Cross multiply
    19,051x = 26,290.38 × 10,667.68
  4. Step 4: Simplify right side
    19,051x = 280,457,360.92
  5. Step 5: Solve for x
    x = 280,457,360.92/19,051
  6. Step 6: Final answer
    x = 14,721.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.